"I think the big discussion right at the start was, 'How do we do this? How do we talk about autism?,'" one of the show's writers, Christine Ferraro, told "60 Minutes" correspondent Lesley Stahl.

Over the almost five decades "Sesame Street" has been on the air, it has established a reputation for inclusion with its characters.

Joan Ganz Cooney , one of the founders of the Children's Television Workshop which developed "Sesame Street," said it has also not been afraid to deal with real life issues including the death of a beloved character, Mr. Hooper in 1983.

"Sesame Street had always dealt with the real," she said. " And it was real, and so we decided not to just replace him and call the man Mr. Hooper and hope they didn't notice."

Julia's debut episode will deal with what autism can look like. The brain disorder can make it difficult for sufferers to communicate with and relate to others.